Model 1451 PC Board Mountable Pressure Sensor 0-60 mV Output Gage and Absolute Pressure Low Cost Altitude Measurement Barometric Pressure Medical Instrumentation Consumer Appliances Tire Pressure DESCRIPTION The Model 1451 is a piezoresistive silicon pressure sensor packaged in a surface mount configuration. It is intended for high volume applications where small size, light weight, low cost, and compatibility with automated assembly equipment are required. The pressure sensor is available with a gage or absolute pressure sensing chip that is attached to a surface mountable ceramic substrate. A cap is attached to the ceramic substrate, protecting the chip and providing the pressure port. The devices are shipped in plastic anti-static shipping tubes for use with automated production equipment. The drawing shows a standard tube version. Caps are also available with a Narrow hole or a large hole to interface with the pressure media. FEATURES Surface Mount Package ±0.25% Pressure Non-linearity 3 Pressure Port Options Solid State Reliability Low Power DIMENSIONS STANDARD RANGES 1-8 Range psia psig 0 to 5 ● ● 0 to 15 ● ● 0 to 30 ● ● 0 to 50 ● ● 0 to 100 ● ● 0 to 250 ● 0 to 500 ● Surface Mount Model 1451 PC Board Mountable Pressure Sensor PERFORMANCE SPECIFICATIONS Supply Voltage: 3 VDC Ambient Temperature: 25°C (Unless otherwise specified) PARAMETERS MIN TYP MAX UNITS Full Scale Output Span 30 60 120 mV Zero Pressure Output –25 25 mV Pressure Non-linearity –0.25 0.25 % Span Pressure Hysteresis –0.1 0.1 % Span Input & Output Resistance 3500 5000 6000 NOTES 1 Ω Temperature Coefficient - Span –0.20 %/°C 2 Temperature Coefficient - Zero +0.05 %/°C 2 Temperature Coefficient - Resistance +0.25 Thermal Hysteresis - Zero –0.2 Supply Voltage 3 %/°C 2 0.2 % Span 2 12 Volts DC Response Time (10% to 90%) 1.0 msec 3 Output Noise 1.0 µV p-p 4 0.5 ±% Span/year Insulation Resistance (50 VDC) MΩ 50 Long Term Stability Pressure Overload 3X Operating Temperature Rated –40°C to +125°C Storage Temperature –50°C to +150°C Media Non-Corrosive Gases Weight 0.3 g Notes 1. Best Fit Straight Line. 4. 10 Hz to 1 kHz. 2. Over the temperature range 0-50°C with respect to 25°C. 5. 3. For a zero-to-full scale pressure step change. For sensors above 100 psi applications, the entire sensor is required to be inside the pressure chamber. 6. Gel fill is only offered with the wide hole option. ORDERING INFORMATION CONNECTIONS 1451 - 015 Bottom View (View A-A) A - T P Coating (P = Parylene, F = Gel Fill, Blank = No Coating) Port (T = Tube, N = Narrow Hole, W = Wide Hole) Type (A = Absolute, G = Gage) Pressure Range Model June 2001 Surface Mount Feel free to contact customer service with any questions at Toll free 1(800)745-8008; Phone (757)766-1500; Fax (757)766-4297 1-9